#define _CRT_SECURE_NO_WARNINGS 1
#include<stdio.h>
int main()
{
	/*const int n = 5;
	int arr[n];
	printf("n = %d\n", n);
	int* p = &n;
	*p = 20;
	printf("n = %d\n", n);*/

	int a = 10;
	int b = 20;
	int const* const p=&a;
	*p =30 ;
	p = &b;
	return 0;
}